Results 71 to 80 of about 523,058 (203)

A Study of the Aurora of 1859 [PDF]

, 1960
The two great auroral displays of August 28-29 and September 1-2, 1859 are studied from a collection of world-wide descriptive observations. Both auroras reached to unusually low latitudes.
Kimball, D. S.
core  

Direct Observation of the Space Hurricane Disturbed Polar Thermosphere

Geophysical Research Letters
The space hurricane is a three‐dimensional magnetic vortex structure with strong flow shears and electron precipitation in the polar cap. This study investigates for the first time how a space hurricane disturbs the polar thermosphere.
Zhi‐Feng Xiu, Yu‐Zhang Ma, Qing‐He Zhang, Zan‐Yang Xing, Shun‐Rong Zhang, Yong‐Liang Zhang, Kjellmar Oksavik, Larry Lyons, Michael Lockwood, Yong Wang   +9 more
doaj   +1 more source

Short Wave Infrared Imaging for Auroral Physics and Aeronomy Studies

Journal of Astronomy and Space Sciences
Advances in solar-terrestrial physics are generally linked to the development of innovative new sensor technologies, affording us ever better sensitivity, higher resolution, and broader spectral response.
Trond S. Trondsen, John Meriwether, Craig Unick, Andrew Gerrard, Matthew Cooper, Devin Wyatt   +5 more
doaj   +1 more source

Pi2-pulsations, aurora oval and plasma density in the magnetosphere [PDF]

Geomagnetic pulsations Pi2, aurora oval, and plasma density in ...
Feldshteyn, Ya. I., Shchepetnov, R. V., Troitskaya, V. A.   +2 more
core   +1 more source

Characteristics of multiple transpolar arcs motion and its corresponding magnetospheric dynamic process

Frontiers in Astronomy and Space Sciences
Multiple Transpolar arcs (MTPAs) are distinct auroral phenomenon occurring in the high-latitude ionosphere under prolonged northward interplanetary magnetic field (IMF) conditions. While the evolution of MTPAs is thought to be mainly modulated by the IMF
Yan-Ju Sun, Yan-Ju Sun, Qing-He Zhang, Qing-He Zhang, Zan-Yang Xing, Xiang-Yu Wang, Duan Zhang, Bin-Bin Tang, Sheng Lu, Yu-Zhang Ma, Yong Wang, Zhi-Feng Xiu, Xin-Ming Chen, Tong Xu, Shu-Ji Sun, Jin Wang, V. Manu   +16 more
doaj   +1 more source

Aurora and the lower ionosphere in relation to satellite observations of particle precipitation [PDF]

Aurora and lower ionosphere in relation to satellite observations of electron ...
Hultqvist, B.
core   +1 more source

Auroral Emissions on Ganymede: New Constraints on Their Electron Energy Dependence

Geophysical Research Letters
Auroral emissions on Ganymede provide critical insights into its magnetospheric dynamics and atmospheric composition. Using a physics‐based atmospheric model with recent atmospheric observations and laboratory measurements of electron‐impact cross ...
Xin Cao, Mika K. G. Holmberg, Caitriona M. Jackman, Hans L. F. Huybrighs, Sebastian Cervantes, Audrey Vorburger   +5 more
doaj   +1 more source

Validation of AMPERE Magnetic Perturbations Using Swarm

Space Weather
The Active Magnetosphere and Planetary Electrodynamics Response Experiment (AMPERE) provides continuous global maps of Birkeland currents, using magnetic field perturbations (dB) obtained by calibrating and detrending data from engineering magnetometers ...
A. T. Chartier, J. Rodriguez‐Zuluaga, C. L. Waters, B. J. Anderson, S. K. Vines   +4 more
doaj   +1 more source

Exploring the relationship between STEVE and SAID during three events observed by SuperDARN

Frontiers in Astronomy and Space Sciences
The phenomenon known as strong thermal emission velocity enhancement (STEVE) is a narrow optical structure that may extend longitudinally for thousands of kilometers.
E. P. Macho, W. Bristow, B. Gallardo-Lacourt, B. Gallardo-Lacourt, S. G. Shepherd, J. M. Ruohoniemi, E. Correia, E. Correia   +7 more
doaj   +1 more source

Auroras [PDF]

Science, 1887
openaire   +4 more sources